Hello, just came across this older thread, but I can tell you definitively what that is on the desk. It's the design mock up from the final presentation to Motorola for the iRadio (name later changed to Envoy). It was designed by me when I was working at frogdesign in California. The head of frogdesign, Hartmut Esslinger met Spielberg on a plane and showed him this mockup. Steven asked if it could be used as a prop in the film, and Hartmut gave it to him. There were three configurations proposed, and this one was the one that Motorola had chosen to pursue. It was a design and engineering proof of concept for the hinge and folding mechanism. It doesn't have the external antenna as the original engineering spec had an internal loop antenna around the screen. Motorola discovered that a flat orientation limited reception, so the external one was added. The two slots were originally for PC cards, but this was later eliminated due to space restrictions.